Fancy Intense Blue Diamond Sells For £2.7M at Bonhams London Sale

(IDEX Online) – A fancy intense blue diamond which had been in a private collection for nearly 30 years sold for £2,685,000 at Bonhams Fine Jewellery sale in London.

The pear-shaped diamond, weighing 4.03 carats, was bought by Graff Diamonds for $853,203 price per carat.

Meanwhile, a fancy colored diamond brooch dating from the mid-20th century sold for £725,000. The brooch comprised a total of four fancy colored diamonds: a square step-cut fancy gray-blue diamond, weighing 4.83 carats, two fancy dark brown-greenish yellow step-cut diamonds, weighing 2.51 carats and 2.38 carats respectively, and a pear-shaped fancy pink diamond, weighing 1.90 carats.

The second highest value lot sold during the sale was a Kashmir sapphire single-stone ring, weighing 9.61 carats. The octagonal step-cut sapphire had no indications of heating and went under the hammer for £845,000, equating to $112,600 price per carat.

White diamonds, a staple of any fine jewellery sale, also performed well in the September sale. Estimated at £80,000-£100,000, an old marquise-cut diamond single-stone ring, weighing 4.61 carats, D color, VVS2 clarity, potentially flawless, sold for £118,750 against its pre-sale estimate of £80,000-100,000.

Jean Ghika, Head of Jewellery, Bonhams UK & Europe, said: “Our top lots performed extremely well with global buyers vying for the prize lots. The blue diamond and Kashmir sapphire both achieved strong hammer prices, demonstrating discerning collectors will always seek out the best examples when it comes to fine gemstones." The overall sale total was £7,615,375 with 93 percent of lots sold by value.